STATE GCR-40 410

This site computed the 264 therms figure; the registry does not publish it. The calculation starts from the registry's UEF, the ratio of hot water delivered to energy used, which is 0.64 for this model. That ratio is combined with the daily hot-water draw the DOE test sets for the high draw pattern. The source is the DOE CCD, retrieved 2026-09-19. The 264 therms value therefore holds only at that test draw. A home that draws a different amount of hot water each day will not use exactly 264 therms a year. The registry does not say how much the figure changes. The steps behind the number are set out in how the annual cost is calculated.

Among the 414 gas tank models at the high draw pattern, this one ranks 236th lowest energy use. That places it in the second-highest quarter of its class for energy use, 4 therms above the 260 therms median. The high draw pattern describes a larger household, or one where showers and laundry overlap. The tank holds 38 gallons. Its first hour rating, the gallons of hot water available in the first hour from a full tank, is 80 gallons. A smaller household with lighter daily use falls outside the condition this figure was tested at. For that home, the 264 therms value is not a direct measure. To check other models in the same class, use find a same-class replacement by model number.

The running cost is not written here because it depends on your state's average residential gas price. The page applies that price to the 264 therms yearly use at the high draw pattern, using the ZIP you enter. You can see the result in the water heater cost calculator for your own ZIP. At the test draw, this model uses 4 therms a year more than the class median of 260 therms. What that gap costs depends on your own gas rate, so it is not stated here. The installed price range on this page appears in its own block with its source and date. It is a modeled installed-cost range, not a quote.